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Vitamin E and Male Infertility

Vitamin E and Male Infertility

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00178516
Enrollment
58
Registered
2005-09-15
Start date
2004-06-30
Completion date
2005-12-31
Last updated
2009-07-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Male Infertility

Keywords

male, infertility

Brief summary

The goal of this study is to determine whether there is a correlation between the levels of Vitamin E in sperm and sperm DNA fragmentation. Previous research has shown that damage to the DNA in sperm may cause infertility or increase the chances of miscarriage, if the damage is extensive (eg. present in the overwhelming majority of sperm). Some studies suggest that DNA damage can be caused by oxidative stress. Antioxidants, such as Vitamin E, which are present in some foods, can prevent damage to cells from free radicals, which are naturally present by-products of metabolism. We ask whether there is a correlation between sperm DNA damage and Vitamin E

Detailed description

Sperm DNA damage is an emerging cause of male infertility that is likely to be more common among men with increased reactive oxygen species in the ejaculate. Vitamin E can protect the sperm membrane from oxidative damage and increased levels are associated with low levels of reactive oxygen species. This is a study of Vitamin E levels in the spermatozoa and sera of 48 infertile men, and 20 fertile men as a control group, to look for correlations between sperm vitamin E levels and the degree of sperm DNA fragmentation. Dietary intake of antioxidants will also be included.

Interventions

OTHERbehavior, procedure

Sponsors

Mae Stone Goode Foundation
CollaboratorOTHER
University of Rochester
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
MALE
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* infertile men with previously abnormal semen analyses. * Control group: fertile adult males

Exclusion criteria

* Proxceed use within 3 months of the start of study. * Vitamin E supplements with \> 45 IU daily

Design outcomes

Primary

MeasureTime frame
correlate vitamin E levels in spermatozoa with degree of DNA fragmentation in infertile men

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026